Method of making couplings



Feb. 3, 1925.

E. E. JOHNSON METHOD OF MAKING COUPLINGS Fla 1 Filed Feb. 27.

A TTOFPNE Patented Feb. 3, 1925.

EDWARD. n JOHNSON, or s'r. PAUL, MINNESOTA.

METHOD .OF MAKING COUPLINGS.

Application filed February 27, 1922. Serial No. 539,432.

To all who-m it may concern."

- metal of the proper size. 1

, is hed by bendin Be it .known that I, EDWARD E. JoHNsoN,

a citizen of the United States, residing at St. Paul, in the county ofRamsey and State of Minnesota, have invented certain new and usefulImprovements in Methods of Making Couplings, of which the following is aspecification.

My invention relates to methods of making couplings, and has for anobject to provide a coupling clasp and be secured to a wooden rod orshaft and having a threaded cylindrical portion adapted to be secured tothe threaded end of a metal rod. The method of my invention conslsts 1nproviding a strip of sheet metal, butt-welding a section of pipe to saidstrip and bending the end portions of the strip to. form clasping wings.

The full objects and advantages of m invention will appear in connectionwit the detailed description, and the novel features embodied in myinventive idea will be particularly pointed out in the claims.

In the drawings which illustrate successive stagesin the performance ofmy method, Fig. 1 is a face view of a blank of sheet Fig. 2 is a faceview showing the blank or strip provided with holes which are to be usedin attaching one end of the finished coupling. Fig.

3 is a side elevational view of a section of pipe which has beenthreaded. 'Fig. 4 is an elevational view showing the pipe section. ofFig. 3 butt-welded to the metal strip. Fig. 5 is a view in so-called;perspective showing the coupling after it has been finthe two endportions of the strip at rig t angles to form wingls. Fig. 6 is anelevational view showing t coupling attached to contiguous ends of tworods for connecting the rods together.

In carrying out my invention, a strip or blank 10 such as shown in Fig.1 is cut to corresponding holes, screw-threading a seethe desired sizefrom sheet metal or other wise formed in-any suitable manner from sheetmetal, and this strip is"preferably in the finishedharticle. A section,of pipe 16 of the proper length and size is screwthreaded andbutt-welded'to the'i'niddle porhaving wings adapted 'tomiddle ig. .6 toform 20 and is secured thereto in suitable manner as bymeans of rivets26 and 28 passing through the pairs of holes 12 and 14 respectively. Thethreaded'end of-a metal rod 30 of the desired lengthis screwed upon vthe threads of the pipe section 16. My

method provides a particularly strong and effective coupling for thispurpose which is much less liable to break in use than castings sincethe rolled or drawn metal which I employ is tough and ductile enough topermit considerable flexing without break- -I claim:

1. The method of making couplings which consists in providing a strip ofsheet metal, butt-Welding a section of pipe to the middle portion ofsaid strip and bending the end portions of said strip to form wings.

- 2. The method of making couplings which consists in providing a stripof sheet metal,

securing a rod-attaching member to the portion of said strip and bendingthe end portions of said strip to form wings.

3. The method of making couplings which consists in cutting a strip fromsheet metal, screw-threading a section of pipe, butt-welding saidsection. of pipe to the middle portion of said strip, the end portionsof said strip at right angles to form wings which are disposed parallelto each other. a

4. The method .of making couplings which consists in cutting a stripfrom sheet metal, providing said strip with pairs of tion of pipe,butt-welding said section of pipe to the middle portion of said strip,and bending the end portions ofsaid strip at and bending right angles toform wings which are disos'ed parallel/to each'other.

signature.

In testimony whereof I hereunto afiix my EDWARD ,E. JOHNSON.

